I have looked into them.
I like them. Picture quality, HDMI 1.3, 20k-50k lamp hours, price....
I do not like the viewing angles.
My short list of TV's I have been negotiating with the wife on (in no particular order)...
Samsung HLT 5689 or 5089
Panasonic 58pz700u or 50pz700u
Pioneer PDP-5080
Which models were you looking at?
I have a few friends who have the Sony XBR2, and XBR3 TV's. They are not bad. Many have cloud issues when it comes to dark scene's. AVSforums has a bunch of info over there on it. But overall, they are decent. I just have no faith in Sony products, so will never buy 1 again.